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Table 1 Features of Stylonychia H3 variants

From: Differential expression of histone H3 genes and selective association of the variant H3.7 with a specific sequence class in Stylonychia macronuclear development

Gene 5′-telomere 5′-sub-telomere CDS 3′-sub-telomere 3′-telomere Total Intron Protein MW Nuclear type PTM Sequence class Piwi-dependent
HIS31 20 728 417 283 36 1484 NA H3.1 15.59     No
HIS32A 20 730 417 313 36 1516 NA H3.2a 15.56     No
HIS32B 20 727 417 313 36 1513 NA H3.2b 15.59     No
HIS33 20 198 417 154 36 893 68: 399 to 466 H3.3 15.75 M, a1 to a3, e    Yes
HIS34 20 169 411 240 36 876 NA H3.4 15.69     Uncertain
HIS35 20 233 417 255 36 961 NA H3.5 15.25 M, a1 to a3, e    Uncertain
HIS36 20 231 414 467 36 1168 NA H3.6 15.56     ND
HIS37 20 429 543 255 36 1283 NA H3.7 20.01 a3, e H3.7K3me3 (H3K4me3); H3.7K105ac (GVKacKPHR) MDS loci No
HIS38 20 97 540 327 36 1020 NA H3.8 20.48 m H3.8K26me3 or H3.8K32me3 (H3K27me3); H3.8S27ph or H3.8T33ph (H3S28ph)   No
  1. Abbreviations: a1 to a3 anlagen during polytenization, e anlagen during DNA elimination, CDS coding sequence, M macronucleus, m micronucleus, MDS Macronucleus-destined sequence, MW molecular weight, NA not applicable, ND not done, PTM post-translational modification.